US long-range B-2 stealth bombers target underground bunkers of Yemen’s Houthi rebels The Associated PressU.S. Strikes Target Houthi Weapons Stores in Yemen The Wall Street JournalUS stealth bombers hit Houthi underground weapons depots in apparent warning to Iran The Times of IsraelU.S. Bombs Houthi Weapons Caches in Yemen The New York TimesUS bombers target Houthi weapon sites in Yemen BBC.com